US Bridges

CR 4789 over Trib to Blackwater Creek

Good

Shelby County, Texas · 3.1 MI S US 59 at Timpson · Structure no. 112100AA0223002

Built
2018
7 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
55
2017 count
Owner
County
County Highway Agency

About this bridge

CR 4789 over Trib to Blackwater Creek is a prestressed concrete slab carrying CR 4789 over Trib to Blackwater Creek in Shelby County, Texas. It was built in 2018, so it is 7 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 55 vehicles a day, projected to reach 55 by 2037. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCR 4789
CrossesTrib to Blackwater Creek
Location3.1 MI S US 59 at Timpson
RouteCounty Highway 4789
StateTexas
Coordinates31.86418, -94.41083
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2017)
Projected traffic55 by 2037
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 4789 over Trib to Blackwater Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is CR 4789 over Trib to Blackwater Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does CR 4789 over Trib to Blackwater Creek carry?

About 55 vehicles per day (2017 count).

How long is CR 4789 over Trib to Blackwater Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns CR 4789 over Trib to Blackwater Creek?

It is owned by the County Highway Agency.